<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<style>
  #z1{
    color: green;
  }
  .c1{
    color: blue;
  }
  input{
    color: pink;
  }
  input[type="submit"]{
    background-color: red;
  }
  *{
    border: 2px solid blue;
  }
  h2,h1{
    background-color: yellow;
  }

</style>
<ul>
  <li class="c1">刘德华</li>
  <li id="z1">张学友</li>
  <li>郭富城</li>
</ul>
<h1 class="c1">悟空</h1><h1>八戒</h1><h1>沙僧</h1>
<h2>刘备</h2>
<input type="submit" value="提交按钮">
<input type="button" value="普通按钮">
</body>
</html>